When genetic variation and/or mutation renders current immunities ineffective in the general population, or when a bacteria or virus reaches a compromised population, outbreak occurs.
Ease of travel, where through interaction between people in centralized hubs of travel, and in close quarters during travel, which is necessary for affordable travel, as in airplanes, gives favorable conditions for exceptionally aggressively virulent (disease-producing) strain to be spread world-wide with-in 36-48 hours.
Central to this is the lack of time in large populations, and lack of communication between different municipalities and countries that is necessary to develop vaccines or inoculations to combat the disease.
Hey ask ur teacher.
3 Major influenza Pandemics
The pandemics is still a worry in the developed countries because of the ability to contain the spread when it appears.
True, scientists have not been able to eliminate the threat of future pandemics.
Outbraks of disease throughout England
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Now with Bill Moyers - 2002 Predicting Pandemics was released on: USA: 8 May 2009
pandemics maybe... Howmayihelpyou123 says: Pandemics is in one country, its called an epidemic when it travels between countries in water, air, ect.
paramedic ceramic, panoramic, epidemic
A pandemic occurs when a disease spreads to a continent(s) or worldwide
The relative ease of travel.
I was really interested when I read this question as I had been researching this myself. The main pandemics in history have included:• Plague of Justinian, around 100 million died in Europe between 541 to 542• Black Death, between 50 to 200 million died of this between 1331 to 1353The recent COVID-19 Coronavirus has me concentrating on more recent pandemics, I wondered how does this compare? I found this infographic very useful for modern pandemics, this states that the pandemics of the last century were:• Spanish flu – which killed 17 million around 1918 to 1920• Asian flu – which killed 1.1 million around 1956 to 1958• Hong Kong flu – this killed around 1 million between 1968 to 1969• HIV / AIDS – this has killed 32 million people so far• Swine flu – this killed around 575,000 people between 2009 to 2010